Hi Cees! Have you changed your DNS recently? (was:Re: [Box-Admins] DNS server down)

[Tobias Pape]

On 26.11.2014, at 00:46, Levente Uzonyi <leves at elte.hu> wrote:

> On Wed, 26 Nov 2014, Tobias Pape wrote:
> 
>> 
>> On 26.11.2014, at 00:36, Case de Groot <cg at cdegroot.com> wrote:
>> 
>>> I wish I could help here (well I always can of course ;-)), but it wasn’t me. No need to apologize though, Chris :)
>>> 
>>> Looking up the NS for Squeak.org:
>>> 
>>> squeak.org.		259200	IN	NS	a.ns.squeakfoundation.org.
>>> squeak.org.		259200	IN	NS	b.ns.squeakfoundation.org.
>>> 
>>> And then to IP addresses:
>>> 
>>> a.ns.squeakfoundation.org has address 85.10.195.197
>>> b.ns.squeakfoundation.org has address 69.72.148.198
>>> 
>>> The next step is grab whois data for these IPs. The first one is active at Hetzner:
>>> 
>>> inetnum:        85.10.192.0 - 85.10.207.255
>>> netname:        HETZNER-RZ-NBG-NET
>>> descr:          Hetzner Online AG
>>> descr:          Datacenter Nuernberg
>>> 
>>> 
>>> but the second one points to Nirvana. Strange but true, that IP doesn’t seem to be allocated (an enclosing block is allocated, but that’s all):
>>> 
>>> FortressITX FORTRESSITX (NET-69-72-128-0-1) 69.72.128.0 - 69.72.255.255
>>> 
>>> I guess that someone (and yes, that might very well have been, unknowingly, me ;-)) ran an NS on an ISP that went out of business, and thus the IP block came back for reallocation. As I still own squeakfoundation.org, I can repoint that. If anyone knows a spot where we can setup secondary DNS, preferably for free, ping me. Else, I’ll do some digging around to see where I can park it. I will probably need access to the primary DNS (do we still have a Hetzner host), will shout for help :-)
>> 
>> I could probably provide a slave dns.
> 
> Both box3.squeak.org and box4.squeak.org have a DNS server installed, but they are not synchonized with box2 (our primary name server).
> The plan was to host the two DNS servers on box3 and box4 (box4 as primary I guess), but I suspect that they are both in the same data center, so we could use a third server somewhere else.

Also, I don't know whether this hold for .org, but for .de, the IPs for
the (at least) two DNS servers have to be in different A-ranges.

Best
	-Tobias